OFIQ C# Wrapper Library Requirements

Project Overview

Create a .NET 8 wrapper library for the Open Source Face Image Quality (OFIQ) C++ library, providing a modern, type-safe, and performant C# API for facial image quality assessment.

Target Framework

Core Requirements

1. Native Interoperability

2. API Design

3. Data Structures

4. Quality Measures Support

Wrap all 28 quality measures defined in ISO/IEC 29794-5:

5. Configuration System

6. Image Processing

7. Performance Requirements

8. Error Handling

Technical Implementation

Project Structure

OFIQ-CSharp-Wrapper/
├── src/
│   ├── OFIQ.Native/
│   │   ├── Interop/           - P/Invoke declarations
│   │   ├── SafeHandles/       - SafeHandle implementations
│   │   └── OFIQ.Native.csproj
│   ├── OFIQ.Core/
│   │   ├── Types/             - Data structures
│   │   ├── Configuration/     - Configuration system
│   │   ├── QualityMeasures/   - Quality measure definitions
│   │   └── OFIQ.Core.csproj
│   ├── OFIQ/
│   │   ├── OFIQEngine.cs      - Main API
│   │   ├── Extensions/        - Helper methods
│   │   └── OFIQ.csproj
│   └── OFIQ.Extensions/
│       ├── DependencyInjection/ - DI integration
│       └── OFIQ.Extensions.csproj
├── tests/
│   ├── OFIQ.Tests.Unit/
│   ├── OFIQ.Tests.Integration/
│   └── OFIQ.Benchmarks/
├── samples/
│   ├── ConsoleApp/
│   ├── WebApi/
│   └── BlazorApp/
└── docs/

Dependencies

Build and Deployment

Testing Requirements

Unit Tests

Integration Tests

Sample Applications

Documentation

Compliance

Success Criteria

  1. Full API coverage of OFIQ functionality
  2. Cross-platform compatibility
  3. Performance within 5% of native calls
  4. Comprehensive test coverage (>90%)
  5. Production-ready deployment packages
  6. Complete documentation and samples

Future Enhancements